mirror of
https://github.com/MariaDB/server.git
synced 2025-01-31 02:51:44 +01:00
48aee45957
This bug happened because the executor tried to use a wrong TABLE REF object when building access keys. It constructed keys from fields of a materialized table from a ref object created to construct keys from the fields of the underlying base table. This could happen only when materialized table was created for a non-correlated IN subquery and only when the materialized table used for lookups. In this case we are guaranteed to be able to construct the keys from the fields of tables that would be outer tables for the tables of the IN subquery. The patch makes sure that no ref objects constructed from fields of materialized lookup tables are to be used.
141 lines
4.9 KiB
Text
141 lines
4.9 KiB
Text
#
|
|
# Run subselect_sj2.test with subquery materialization.
|
|
#
|
|
set optimizer_switch='materialization=on';
|
|
set optimizer_switch='mrr=on,mrr_sort_keys=on,index_condition_pushdown=on';
|
|
|
|
--source t/subselect_sj2.test
|
|
|
|
set optimizer_switch=default;
|
|
select @@optimizer_switch like '%materialization=on%';
|
|
|
|
--echo #
|
|
--echo # BUG#906385: EXPLAIN EXTENDED crashes in TABLE_LIST::print with limited max_join_size
|
|
--echo #
|
|
CREATE TABLE t1 ( a INT );
|
|
CREATE TABLE t2 ( b INT );
|
|
|
|
INSERT INTO t1 VALUES (1),(2);
|
|
INSERT INTO t2 VALUES
|
|
(1),(2),(3),(4),(5),
|
|
(6),(7),(8),(9),(10),
|
|
(11),(12),(13),(14),(15),
|
|
(16),(17),(18),(19),(20);
|
|
|
|
set @tmp_906385=@@max_join_size;
|
|
SET max_join_size = 80;
|
|
|
|
--error ER_TOO_BIG_SELECT
|
|
EXPLAIN EXTENDED
|
|
SELECT COUNT(*) FROM t1
|
|
WHERE a IN
|
|
( SELECT b FROM t2 GROUP BY b )
|
|
AND ( 6 ) IN
|
|
( SELECT MIN( t2.b ) FROM t2 alias1, t2 );
|
|
|
|
DROP TABLE t1, t2;
|
|
set max_join_size= @tmp_906385;
|
|
|
|
|
|
--echo #
|
|
--echo # mdev-3995: Wrong result for semijoin with materialization
|
|
--echo #
|
|
|
|
set @save_optimizer_switch=@@optimizer_switch;
|
|
|
|
CREATE TABLE t1 (
|
|
cat_id int(10) unsigned NOT NULL,
|
|
PRIMARY KEY (cat_id)
|
|
) ENGINE=MyISAM;
|
|
|
|
INSERT INTO t1 VALUES
|
|
(709411),(709412),(709413),(709414),(709416),(709417),(709418),(709419),(709421),(709422),
|
|
(709424),(709425),(709427),(709428),(709429),(709431),(709432),(709433),(709434),(709435),
|
|
(709438),(709439),(709441),(709442),(709443),(709444),(709445),(709446),(709447),(709450),
|
|
(709451),(709454),(709455),(709456),(709457),(709459),(709460),(709461),(709462),(709463),
|
|
(709464),(709465),(709467),(709469),(709470),(709471),(709472),(709473),(709474),(709475),
|
|
(709476),(709477),(709478),(709479),(709480),(709481),(709483),(709484),(709485),(709487),
|
|
(709490),(709491),(709492),(709493),(709494),(709495),(709496),(709497),(709498),(709499),
|
|
(709500),(709501),(709502),(709503),(709504),(709505),(709506),(709507),(709509),(709510),
|
|
(709511),(709512),(709513),(709514),(709515),(709516),(709517),(709518),(709519),(709520),
|
|
(709521),(709522),(709523),(709524),(709525),(709526),(709527),(709528),(709529),(709530),
|
|
(709531),(709532),(709533),(709534),(709535),(709536),(709537),(709538),(709539),(709540),
|
|
(709541),(709542),(709543),(709544),(709545),(709546),(709548),(709549),(709551),(709552),
|
|
(709553),(709555),(709556),(709557),(709558),(709559),(709560),(709561),(709562),(709563),
|
|
(709564),(709565),(709566),(709567),(709568),(709569),(709570),(709571),(709572),(709573),
|
|
(709574),(709575),(709576),(709577),(709578),(709579),(709580),(709581),(709582),(709583),
|
|
(709584),(709585),(709586),(709587),(709588),(709590),(709591),(709592),(709593),(709594),
|
|
(709595),(709596),(709597),(709598),(709600),(709601),(709602),(709603),(709604),(709605),
|
|
(709606),(709608),(709609),(709610),(709611),(709612),(709613),(709614),(709615),(709616),
|
|
(709617),(709618),(709619),(709620),(709621),(709622),(709623),(709624),(709625),(709626),
|
|
(709627),(709628),(709629),(709630),(709631),(709632),(709633),(709634),(709635),(709637),
|
|
(709638),(709639),(709640),(709641),(709642),(709643),(709644),(709645),(709646),(709649),
|
|
(709650),(709651),(709652),(709653),(709654),(709655),(709656),(709657),(709658),(709659);
|
|
|
|
CREATE TABLE t2 (
|
|
cat_id int(10) NOT NULL,
|
|
KEY cat_id (cat_id)
|
|
) ENGINE=MyISAM;
|
|
|
|
INSERT INTO t2 VALUES
|
|
(708742),(708755),(708759),(708761),(708766),(708769),(708796),(708798),(708824),(708825),
|
|
(708838),(708844),(708861),(708882),(708887),(708889),(708890),(709586),(709626);
|
|
|
|
CREATE TABLE t3 (
|
|
sack_id int(10) unsigned NOT NULL,
|
|
kit_id tinyint(3) unsigned NOT NULL DEFAULT '0',
|
|
cat_id int(10) unsigned NOT NULL,
|
|
PRIMARY KEY (sack_id,kit_id,cat_id)
|
|
) ENGINE=MyISAM;
|
|
|
|
INSERT INTO t3 VALUES
|
|
(33479,6,708523),(33479,6,708632),(33479,6,709085),(33479,6,709586),(33479,6,709626);
|
|
|
|
CREATE TABLE t4 (
|
|
cat_id int(10) unsigned NOT NULL,
|
|
KEY cat_id (cat_id)
|
|
) ENGINE=MyISAM;
|
|
|
|
INSERT INTO t4 (cat_id) SELECT cat_id from t2;
|
|
|
|
set optimizer_switch='materialization=off';
|
|
|
|
EXPLAIN
|
|
SELECT count(*) FROM t1, t3
|
|
WHERE t1.cat_id = t3.cat_id AND
|
|
t3.cat_id IN (SELECT cat_id FROM t2) AND
|
|
t3.sack_id = 33479 AND t3.kit_id = 6;
|
|
|
|
SELECT count(*) FROM t1, t3
|
|
WHERE t1.cat_id = t3.cat_id AND
|
|
t3.cat_id IN (SELECT cat_id FROM t2) AND
|
|
t3.sack_id = 33479 AND t3.kit_id = 6;
|
|
|
|
set optimizer_switch='materialization=on';
|
|
|
|
EXPLAIN
|
|
SELECT count(*) FROM t1, t3
|
|
WHERE t1.cat_id = t3.cat_id AND
|
|
t3.cat_id IN (SELECT cat_id FROM t4) AND
|
|
t3.sack_id = 33479 AND t3.kit_id = 6;
|
|
|
|
SELECT count(*) FROM t1, t3
|
|
WHERE t1.cat_id = t3.cat_id AND
|
|
t3.cat_id IN (SELECT cat_id FROM t4) AND
|
|
t3.sack_id = 33479 AND t3.kit_id = 6;
|
|
|
|
EXPLAIN
|
|
SELECT count(*) FROM t1, t3
|
|
WHERE t1.cat_id = t3.cat_id AND
|
|
t3.cat_id IN (SELECT cat_id FROM t2) AND
|
|
t3.sack_id = 33479 AND t3.kit_id = 6;
|
|
|
|
SELECT count(*) FROM t1, t3
|
|
WHERE t1.cat_id = t3.cat_id AND
|
|
t3.cat_id IN (SELECT cat_id FROM t2) AND
|
|
t3.sack_id = 33479 AND t3.kit_id = 6;
|
|
|
|
|
|
DROP TABLE t1,t2,t3,t4;
|
|
|
|
set optimizer_switch=@save_optimizer_switch;
|